As someone that has mild prosopagnosia, I always see that these authors forget that there's more ways to recognize people than just their face. Voice and hair in particular stand out, sometimes even style of dress. Like, if you don't recognize people by face, your brain copes by recognizing in other ways, that's just how it works. The fact that the MC can't even recognize her dad's voice when she wakes up and freaks out...I know I'm supposed to suspend my disbelief in fiction, but this just isn't that accurate.